钢铁企业炼铁系统碳素流分析及CO2减排措施

针对某钢铁企业炼铁系统，建立了炼铁系统碳素流模型；基于碳平衡原理，用实际生产数据计算出碳排放量，分析碳排放的影响因素并分析了碳排放与投入系统能源之间的关系.结果表明:炼铁系统碳排放模型计算的碳排放量更加符合我国实际；能源消耗量与碳排放量之间存在协同作用，能源消耗引起的碳排放占系统CO2排放的95%，且每种能源的碳排放潜力不同，煤、焦炭等能源的排放潜力较大.指出降低炼铁系统CO2排放关键在于改变能源结构、采用清洁能源和开发节能减排新技术.

Carbon Flow Analysis and CO2 Emission Reduction Strategies of Iron-Making System in Steel Enterprise

In view of a practical iron-making system of a iron and steel enterprise, the carbon flow model of the iron-making system was established according to carbon balance theory, which can calculate the carbon emission using the practical production data and analyze the influence factors of carbon emission. The relationship between carbon emission and input system energy was analyzed by drawing carbon flow diagram of iron-making system. The results showed that the model of CO2 emission was coincident with Chinese iron and steel industry and there was a synergy effect between energy consumption and the amount of the carbon emission. The carbon emission caused by energy consumption takes up 95% CO2 emission of the system, and each kind of energy has different carbon emission potential, the emissions potential of coal and coke is larger than that of others. The key points of CO2emissions reducing of iron-making systems lie in changing energy structure, using clean energy and developing new technology.